package com.kuangstudy.operator;

/**
 * ClassName: Demo4
 * date: 2021/7/10/010
 *
 * @author zlk
 */
public class Demo4 {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;
        System.out.println(""+a+b);//1020
        System.out.println(a+b+"");//30
    }
}
